摘要
为了科学评判灌区的综合应用,实现灌区的利润最大化,农民纯收入大幅提高,需要对灌区的整体运行情况进行综合效益评价研究.首先将德尔菲法和模糊分析法相结合,引入信息熵进而计算获得的结构熵权法对评估指标进行综合赋权,赋权值后再引入密切值决策法对大型灌区洛惠渠灌区2007—2012年的运行状况进行综合评价研究.结果表明:洛惠渠灌区在2007—2012年的密切值分别为2.719 2,2.205 1,1.311 7,0.485 5,0.188 8,0,运行状况越来越好;相隔年数密切差值为0.514 2,0.893 3,0.826 3,0.296 7,0.188 8,运行状况趋向稳定.基于结构熵权-密切值法的评价研究结果与拉开档次-集对分析法、灰色关联理论-TOPSOS法的评价结果都大体相同,伴随着时间的推移,灌区运行的状况越来越好,且更加精确,这也符合洛惠渠灌区的实际发展状况.该方法计算简明,可靠性高.
In order to judge the comprehensive application of irrigation district scientifically and achieve the benefit maximization,comprehensive evaluation of operational status of large-scale irrigation district is necessary. First,the Delphi and the fuzzy analysis method are combined; then the structure of entropy method is introduced based on the information entropy to evaluate the evaluation indexes; finally,the close value method is used to evaluate Luohuiqu irrigation operational status of the2007-2012 years. The results show that the close value of the irrigation district in 2007-2012 is2. 719 2,2. 205 1,1. 311 7,0. 485 5,0. 188 8,and 0,respectively,and its operational condition isgetting better and better. The close value of adjacent years is 0. 514 2,0. 893 3,0. 826 3,0. 296 7,and 0. 188 8,tending to a stable condition. The comprehensive evaluation of operational status of large-scale irrigation district based on modified close value method roughly agrees with the evaluation results with the method of grey correlation theory-TOPSOS. The operational condition is getting better and better with the passage of time and more accurate,which also accords with the actual development of Luohuiqu irrigation district. This method is simple in calculation and has high reliability.
出处
《排灌机械工程学报》
EI
CSCD
北大核心
2016年第10期883-888,共6页
Journal of Drainage and Irrigation Machinery Engineering
基金
国家自然科学基金重点资助项目(51239009)
西北旱区生态水利工程国家重点实验室培育基地科研项目(2016ZZKT-9)
陕西省教育厅科研计划项目(14JK1518)
关键词
大型灌区
结构熵权
密切值法
运行状况
指标权重
综合评价
large-scale irrigation district
structure entropy
close value method
operational status
weight of evaluating index
comprehensive evaluation
